Bollywood superstar Shah Rrukh Khan is suspected to be under threat from underworld following recent attack of a mafia gang against producer Ali Morani. Given that SRK is close to Morani brothers, Mumbai police have beefed up the security for Shah Rukh in order to avoid any untoward incidence.Last week, Ravi Pujari’s mafia gang has apparently demanded money from Bollywood producer Ali Morani and later attacked his house in Juhu, Mumbai. The miscreants had fired over five rounds but fortunately none was injured as Mornai brothers were out of nation. Police suspecting that Ravi Pujari’s gang is targeting top celebrities in order to gain publicity. Morani brothers produced films like Chennai Express, Raja Hindustani etc and also own a top event management firm.